NPPES file of Aug 9, 2026

Medical Oncology Physician in Wisconsin

69 NPPES records list medical oncology physician with a practice address in Wisconsin, 1.2 per 100,000 residents, the 30th highest rate of 51. Madison and Green Bay have the most; each record links to the provider's NPI and the Wisconsin license search. Page 2 of 2.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RX0202X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Madison has the most, 27

  1. Madison27
  2. Green Bay10
  3. La Crosse8
  4. Milwaukee7
  5. Eau Claire5

Medical Oncology Physician records in Wisconsin

  1. Jeffrey Rytlewski, MDMadison, WI 537181760989065
  2. Thomas Saphner, M.D.Green Bay, WI 543031700970894
  3. William Schelman, M.D., PH.D.Madison, WI 537921023073137
  4. Anthony Serritella, MDMadison, WI 537921265822928
  5. Marina Sharifi, M.D., PH.D.Madison, WI 537921265896450
  6. Ismael Shaukat, M.D.Janesville, WI 535481780814863
  7. Shahid Shekhani, MDJanesville, WI 535481649278870
  8. Agnes Smaradottir, MDLa Crosse, WI 546011609276500
  9. Alexander Starr, MDGreen Bay, WI 543031790722619
  10. Hassan Tahsildar, M.D.Green Bay, WI 543131629067269
  11. Amy Taylor, MDMadison, WI 537921467945071
  12. Anne Traynor, MDMadison, WI 537111629039094
  13. Ruth Warren, DOGreen Bay, WI 543031124096185
  14. Leah Wells, MDMadison, WI 537921548722929
  15. Evan WenigGreen Bay, WI 543031215460068
  16. George Wilding, MDMadison, WI 537921235190141
  17. Kari Wisinski, MDMadison, WI 537921982895751
  18. Robert Witte, MDLa Crosse, WI 546011437153046
  19. Stuart Wong, MDMilwaukee, WI 532261265483291

Source: CMS NPPES, primary taxonomy 207RX0202X: records by practice city and the list of records, file of Aug 9, 2026.

Wisconsin ranks 30 of 51 per resident

  1. Kentucky1.3
  2. Virginia1.2
  3. Kansas1.2
  4. Wisconsin1.2
  5. California1.1
  6. Indiana1.1
  7. 50 states and D.C.1.7

Source: CMS NPPES, primary taxonomy 207RX0202X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

73.9% of these records appear in a Medicare file, against 81.8% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Wisconsin73.9%
  2. United States81.8%

Medical Oncology Physician records in Wisconsin, measured

  • In a Medicare file51 of 69 · 73.9% here, 81.8% nationally
  • In the CMS Doctors and Clinicians file46 · 66.7% here, 72.5% nationally
  • Not updated in five years or more41 · 59.4% here, 49.3% nationally
  • Median graduation year2001 · the 46 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RX0202X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

69 NPPES records list medical oncology physician (207RX0202X) as their primary taxonomy with a practice address in Wisconsin: 1.2 per 100,000 residents against 1.7 nationally (50 states and D.C.). Madison has 27 of them (39%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Arizona63
  2. Iowa61
  3. Indiana78
  4. Kentucky59

States with a similar rate per 100,000

  1. California1.1
  2. Kansas1.2
  3. Idaho1.1
  4. Virginia1.2

The largest states

  1. Florida561
  2. New York548
  3. Texas547
  4. California447
  5. Massachusetts421

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.